Nu Aqua Coupon Codes - Updated September 2026

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NU Aqua Reverse Osmosis Water Filter System Replacement Set - 7 Stage 1 Year Alkaline & UV Under Sink Kit - Membrane, Sediment, Carbon Filters, Parts & Fittings - Universal RO Filtration Cartridge
Amazon.com

$125.95

NU Aqua Reverse Osmosis Water Filter System Replacement Set - 7 Stage 1 Year Alkaline & UV Under Sink Kit - Membrane, Sediment, Carbon Filters, Parts &...

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-12%
NU Aqua 4 Stage Reef Series Deionization RODI Reverse Osmosis System - RO Water Filter System 75 GPD Aquarium Filtration with Faucet and Tank - 120-Day Trial
Amazon.com

$179.95

$205.99

NU Aqua 4 Stage Reef Series Deionization RODI Reverse Osmosis System - RO Water Filter System 75 GPD Aquarium Filtration with Faucet and Tank - 120-Day Trial

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-12%
NU Aqua 5-Stage Under Sink Reverse Osmosis Water Filter System - 100 GPD RO Filtration w/Faucet & Tank - PPM Meter - 100GPD Undersink - Home & Kitchen Drinking Water Purifier
Amazon.com

$189.95

$217.99

NU Aqua 5-Stage Under Sink Reverse Osmosis Water Filter System - 100 GPD RO Filtration w/Faucet & Tank - PPM Meter - 100GPD Undersink - Home & Kitchen...

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-13%
NU Aqua 7-Stage Alkaline & UV Under Sink Reverse Osmosis Water Filter System - Booster Pump - 100 GPD RO Filtration & Remineralization - Faucet & Tank - 100GPD Undersink Home Kitchen Drinking Purifier
Amazon.com

$345.95

$397.99

NU Aqua 7-Stage Alkaline & UV Under Sink Reverse Osmosis Water Filter System - Booster Pump - 100 GPD RO Filtration & Remineralization - Faucet & Tank -...

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Nu Aqua 3 Stage Whole House Water Filter System w/Pressure Gauges - 20” x 4.5” TDS Reducing Home Filtration - Sediment, Granular Carbon, Carbon Block
Amazon.com

$399.95

Nu Aqua 3 Stage Whole House Water Filter System w/Pressure Gauges - 20” x 4.5” TDS Reducing Home Filtration - Sediment, Granular Carbon, Carbon Block

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Amazon price updated: September 5, 2026 4:53 pm

1

NU Aqua 5-Stage Under Sink Reverse Osmosis Water Filter System - 100 GPD RO Filtration w/Faucet & Tank - PPM Meter - 100GPD Undersink - Home & Kitchen Drinking Water Purifier

NU Aqua 5-Stage Under Sink Reverse Osmosis Water Filter System - 100 GPD RO Filtration w/Faucet & Tank - PPM Meter - 100GPD Undersink - Home & Kitchen...

9.6
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Amazon.com

2

NU Aqua 4 Stage Reef Series Deionization RODI Reverse Osmosis System - RO Water Filter System 75 GPD Aquarium Filtration with Faucet and Tank - 120-Day Trial

NU Aqua 4 Stage Reef Series Deionization RODI Reverse Osmosis System - RO Water Filter System 75 GPD Aquarium Filtration with Faucet and Tank - 120-Day Trial

9.6
BUY NOW

Amazon.com

3

NU Aqua Reverse Osmosis Water Filter System Replacement Set - 7 Stage 1 Year Alkaline & UV Under Sink Kit - Membrane, Sediment, Carbon Filters, Parts & Fittings - Universal RO Filtration Cartridge

NU Aqua Reverse Osmosis Water Filter System Replacement Set - 7 Stage 1 Year Alkaline & UV Under Sink Kit - Membrane, Sediment, Carbon Filters, Parts &...

9
BUY NOW

Amazon.com

4

NU Aqua 7-Stage Alkaline & UV Under Sink Reverse Osmosis Water Filter System - Booster Pump - 100 GPD RO Filtration & Remineralization - Faucet & Tank - 100GPD Undersink Home Kitchen Drinking Purifier

NU Aqua 7-Stage Alkaline & UV Under Sink Reverse Osmosis Water Filter System - Booster Pump - 100 GPD RO Filtration & Remineralization - Faucet & Tank -...

8.9
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Amazon.com

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